Window cleaner



G. STARK WINDOW CLEANER Filed Dec.

7 Dec. 8, 1931.

ATTORNEY Patented Dec. 8, 1931 PATENT OFFICE CARL STARK, OF NEW YORK, N.Y.

WINDOW oLEAnnR Application filed December 20, 1929. Serial No. 415,377.

he main object of this invention is to provide a window cleaningmechanism which uses a carriage, the latter being lifted and loweredfrom the window pane and is equipped with such accessories as a rubberpad, squeegee and a brush to which water is fed from a tank forming partof the machine.

Another object of the invention is to provide a window washing machineequipped with a pad, brush and squeegee which may be moved from place toplace on a window pane in a quick and convenient manner upon a removabletrack.

The above and other objects will become apparent in the descriptionbelow in which characters of reference refer to like-named parts in thedrawings.

Referring briefly to the drawings, Figure 1 is a front elevational viewof the device.

Figure 2 is a side elcvational view of the device showing the samemounted upon a window sash.

Figure 3 is a top plan view of the cleaner pad.

Referring in detail to the drawings, the numeral 10 indicates the upperbeam of a window sash in which the window pane 11 is framed. In theusual construction of windows, locks are provided on the lower windowsash which engages an attachment on the upper window sash andthereforeany construction that rides upon the lower window frame or sash must beraised above this look if the mechanism is to pass over the entire widthof the window sash. For this reason I propose to use the offset clamps12 shown in Figure 2, which are temporarily secured to the sides of thewindow sash in raised position above the lock on the sash through theiedium of threaded clamp studs 18. These clamp members 12 are usuallytwo in number and are joined a longitudinal track 14 upon which ridesthe entire mechanism of the device. This track is supported in ahorizontal plane above the lock and above the sash, and in turn hasriding thereona U shaped frame consisting of parallel sides 15 and 16upon which sleeves are formed. These sleeves are integral with a frameor connecting element 18. The frame 18 is pro vided with cars 19 inwhich pins 20 are mounted. These pins'20 support grooved rollers 21which ride upon the track 141 of the device across the area of thewindow pane 11. The sleeves 17 receive and have secured therein the arms22 of substantially L shaped rods. From the extremities of these arms 22vertical extensions 23 project in parallel relation to each other andmutually spaced apart. A bracket 24 connects the arms 22 at the rear ofthe device. The bracket 24 has a pair of grooved pulleys 27 mountedthereon. The roof 18 of the device is provided with similar groovedpulleys 25 and 26 which latter are aligned with the pulleys27 on thebracket 24." The extensions 23 of the arms 22 serve as guides for acarriage 28having mounted on one side a hollow container 29. This con-'tainer rides with the carriage in a vertical path. Thelower extremitiesof extensions 23 are Jomed by a connector bar 30. About this connectorbar in a grooved portionthereof a cable 31 is trained. One end of thiscable I is directly connected to a right angle extension 32 of thecarriage 28 and trains aquarter turn about one of the pulleys 2'7 andthence passes about the pulley 26, hanging depended from this pulley andat its one end is provided with a grip ball 33. This cable whenmanipulated, after grasping the grip ball 33, lowers the clamp along theentire length of the guide extensions 23. A second cable 34 is securedto the upper end of the carriage 28 and is trained about the other ofthe pulleys 27 andthence trains about the pulley 25 from which itdepends and has at its lower extremity a grip ball 35. The device has,as heretofore mentioned, a water container 29 from which a pipe 86having perforations 37 th'creinis positioned directly above the bristles38 of a brush body 39. This brush body is mounted upon an L shapedbracket and is secured to the carriage member 32. A second member isalso secured to this right angle extension 32 and comprises a squeegeeframe 40 having a rubber tongue 41 extending therefrom having for itspurposcto engage the surface of the window pane when extended. Thissqueegee frame is adapted to be rotated 90 from the operative positionshown in Figure 2 to the inoperative position by means of a string 42. Athird member is mounted upon the offset extension 32 and comprises acloth covered pad 43 composed of cork or similar other soft material.The cleaner squeegee and the brush are provided with a tongue 44, havingslots 45 therein, which register under the thumb nuts 46 of threadedstuds 47, the thumb nuts when manipulated being adapted to secure thetongues of either of these devices in secured position upon theextensions 32 of the carriage. Mounted upon the arm extensions 23 in thelower ends thereof and seated upon the connector element springs 48 arelocated so that the impact of the descending carriage will be taken upby these springs to prevent any jarring of the device.

The device is essentially used to cleanse the outer surface of a windowpane, which under ordinary conditions endanger the window cleaner tofall or injury as he places himself in a precarious position upon a window ledge. This device may be conveniently mounted upon the outersurface of the window pane without the operator thereof unnecessarilyexposing himself to danger. To permit free travel over the entiresurface of the window pane the clamps 12' are first secured to thewindow sash 10. These clamps locate a track 14 integral with the clampsin raised position over the window sash so that the mechanism will notbe obstructed by the latch usually mounted on the sash. The entiredevice rides upon this track 14 across the width of a window pane. Theframe comprising members 15 and 16 and the roof 18 have extendingtherefrom the extensions 23 and arms 22. These extensions 23 guide thecarriage 28 in a vertical path as the cable 34 is pulled or taken up.Through manipulation of the grip ball 35 the carriage is raised upon theextensions 23 from the lower end of the latter to the upper. As thecarriage arrives at the upper extreme end of the travel the opposinggrip ball 33 is manipulated. This takes up on the cable/e31 and lowersthe carriage as the clamps have either the cleaning pad 43, the squeegeell or the brush 38 secured thereto, individually or in combination.These members are adapted to clean the surface of a window pane. Thecontainer 29 filled with water delivers this water to a pipe line 36whose end above the brush bristles is perforated so that the waterfreely circulates through the. bristles of the brush.

It is to be noted that certain changes in form and construction may bemade without departing from the spirit and scope of the invention.

I claim:

In a window cleaner, a frame adapted to be mounted on top of a windowsash, a track CARL STARK.

